CN207961460U - A kind of automobile engine oil pump sprocket wheel - Google Patents
A kind of automobile engine oil pump sprocket wheel Download PDFInfo
- Publication number
- CN207961460U CN207961460U CN201820286578.1U CN201820286578U CN207961460U CN 207961460 U CN207961460 U CN 207961460U CN 201820286578 U CN201820286578 U CN 201820286578U CN 207961460 U CN207961460 U CN 207961460U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- lubricating oil
- pump sprocket
- sprocket
- automobile engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 18
- 239000010687 lubricating oil Substances 0.000 claims abstract description 40
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 4
- 238000005728 strengthening Methods 0.000 claims abstract description 4
- 239000010721 machine oil Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Abstract
A kind of automobile engine oil pump sprocket wheel disclosed by the utility model, it include lubricating oil pump sprocket body, lubricating oil pump sprocket body is provided centrally with the pilot hole being axially adapted to assembly, lubricating oil pump sprocket body is the integral structure of powder metallurgy forming, lubricating oil pump sprocket body is provided with demoulding taper hole, the periphery of lubricating oil pump sprocket body forms sprocket, the side of lubricating oil pump sprocket body forms cavity, the other side of lubricating oil pump sprocket body forms boss, the periphery of boss forms the conical surface, the both sides of sprocket form cambered surface, the surface hardening of sprocket forms strengthening layer.The utility model has the advantage of：It is simple in structure, powder metallurgical technique one-pass molding is used, it is easily manufactured, manufacturing cost is low, and sprocket both sides form cambered surface, the setting of the cambered surface, not only sprocket is enable more easily to be caught in the gap of chain, be also convenient for the disengaging of chain and sprocket, keeps chain drive more smooth.
Description
Technical field
The utility model is related to a kind of spare and accessory parts of automobile engine, a kind of especially automobile engine oil pump sprocket wheel.
Background technology
Cooling, lubricate particularly significant it is well known that when engine works, cooling insufficient or undercooling can all cause not
Good consequence can cause engine cisco unity malfunction, power to decline, the lost of life；Lacking lubrication between parts can then aggravate
The abrasion of parts, to influence the bulk life time of engine.
Important component in engine motor oil lubricating system the most, machine oil not only acts as lubricant effect, while also can
Cool down to parts, the effect of lubricating oil pump is to provide power for the conveying of machine oil；When engine is run, lubricating oil pump operating,
And driving force is transmitted by machine oil pump sprocket outward, therefore machine oil pump sprocket it is reliable whether, be not only related to the fortune of lubricating oil pump
The conveying of row and machine oil, will finally influence stable operation and the service life of entire engine.
Existing machine oil pump sprocket, mostly uses mechanical processing and is made, and there are of high cost, processing technology is complicated, the production cycle is long
The shortcomings of.
Invention content
For the current state of the art, the technical problem to be solved by the utility model is to provide simple in structure, manufacturers
Just, the good a kind of automobile engine oil pump sprocket wheel of stable transmission.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of automobile engine oil pump sprocket wheel, includes lubricating oil pump sprocket body, and the center of lubricating oil pump sprocket body is set
It is equipped with the pilot hole being axially adapted to assembly, lubricating oil pump sprocket body is the integral structure of powder metallurgy forming, machine oil pump sprocket
Ontology is provided with demoulding taper hole, and the periphery of lubricating oil pump sprocket body forms sprocket, and the side of lubricating oil pump sprocket body forms
The other side of cavity, lubricating oil pump sprocket body forms boss, and the periphery of boss forms the conical surface, and the both sides of sprocket form arc
The surface hardening in face, sprocket forms strengthening layer.
The technical measures of optimization further include：
It is evenly arranged with lightening hole in above-mentioned lubricating oil pump sprocket body.
The both sides of above-mentioned lightening hole are respectively arranged with taper hole, and circular hole is respectively arranged on the outside of taper hole.
The taper of the above-mentioned conical surface is 25 ° to 35 °.
The draw taper of above-mentioned demoulding taper hole is 30 °.
The outer end of above-mentioned sprocket forms platform, and the thickness of platform is 0.05mm to 0.3mm.
It is provided with position-limited edge in above-mentioned pilot hole.
The bottom periphery of above-mentioned cavity is arc structure.
Arc transition is used between the outer wall of above-mentioned boss and the side wall of the lubricating oil pump sprocket body.
A kind of automobile engine oil pump sprocket wheel of the utility model, it is simple in structure, use powder metallurgical technique primary
Molding, easily manufactured, manufacturing cost is low, and the side of lubricating oil pump sprocket body forms boss, which can avoid chain from rotating
When dynamic, end face is in contact with assembly position, and the sprocket both sides of the utility model sprocket wheel form cambered surface, which sets
It sets, not only sprocket is enable more easily to be caught in the gap of chain, be also convenient for the disengaging of chain and sprocket, make chain drive more
Add smooth.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional structure chart of the utility model；
Fig. 3 is the portions A enlarged drawing in Fig. 2；
Fig. 4 is the portions B enlarged drawing in Fig. 2；
Fig. 5 is the portions C enlarged drawing in Fig. 2.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
It is the structural schematic diagram of the utility model as shown in Figures 1 to 5,
Reference numeral therein is：Taper α, lubricating oil pump sprocket body 1, pilot hole 1a, demoulding taper hole 1b, position-limited edge 1c,
Cavity 11, boss 12, conical surface 12a, sprocket 2, cambered surface 21, platform 22, lightening hole 3, taper hole 3a, circular hole 3b.
As shown in Figures 1 to 5,
A kind of automobile engine oil pump sprocket wheel includes lubricating oil pump sprocket body 1, the center of lubricating oil pump sprocket body 1
It is provided with the pilot hole 1a being axially adapted to assembly, lubricating oil pump sprocket body 1 is the integral structure of powder metallurgy forming, lubricating oil pump
Sprocket body 1 is provided with demoulding taper hole 1b, and the periphery of lubricating oil pump sprocket body 1 forms sprocket 2, lubricating oil pump sprocket body 1
Side forms cavity 11, and the other side of lubricating oil pump sprocket body 1 forms boss 12, and the periphery of boss 12 forms the conical surface
The both sides of 12a, sprocket 2 form cambered surface 21, and the surface hardening of sprocket 2 forms strengthening layer.
The both sides of sprocket 2 form cambered surface 21, and the setting of cambered surface 21 facilitates chain in the engagement process of sprocket 2 and chain
Tooth 2 enters, is detached from gap on chain, can also avoid in sprocket wheel transmission process, and sprocket 2 occurs stuck with chain.
In embodiment, lightening hole 3 is evenly arranged in lubricating oil pump sprocket body 1.Lightening hole 3, which is arranged, can mitigate sprocket wheel
Overall weight, to reduce rotary inertia when sprocket wheel rotation；And lightening hole 3 is formed simultaneously in the sprocket wheel process of being manufactured, nothing
Postorder is needed to process.
In embodiment, the both sides of lightening hole 3 are respectively arranged with taper hole 3a, and circular hole is respectively arranged on the outside of taper hole 3a
3b。
In embodiment, the taper α of conical surface 12a is 25 ° to 35 °.
In embodiment, the draw taper of demoulding taper hole 1b is 30 °.
In embodiment, the outer end of sprocket 2 forms platform 22, and the thickness of platform 22 is 0.05mm to 0.3mm.
In embodiment, position-limited edge 1c is provided in pilot hole 1a；Position-limited edge 1c is adapted with plane in assembled shaft, is prevented
It rotates after assembled shaft plugging in fitting hole 1a, efficiency of assembling can be improved.
In embodiment, the bottom periphery of cavity 11 is arc structure.
In embodiment, arc transition is used between the outer wall of boss 12 and the side wall of the lubricating oil pump sprocket body 1.
Above-mentioned arc structure can not only reduce stress concentration, and edge in knockout course can be avoided excessively sharp
It is sharp and avalanche occur.
The material component that lubricating oil pump sprocket body 1 is made is：
C:0.6% to 0.9%；Cu：1.75% to 2.25%；Other impurities metal powder (Zn, Ni, Al etc.)：≤1%；Surplus is
Fe；Using lubricating oil pump sprocket body 1 made of above-mentioned material, density is >=7g/cm3.It is made sprocket wheel heat resistance, wear-resisting
Property and good corrosion resistance, highly reliable, service life is long.
In the present embodiment, the number of teeth of sprocket wheel is 27, pitch 6.35mm.
This lubricating oil pump sprocket wheel is made of powder metallurgical technique, easily manufactured, and stock utilization is high；And using disposably at
Type, it is easily manufactured, manufacture efficiency can be greatly improved.After the completion of the manufacture of machine oil pump sprocket, carries out sprocket 2 and carry out quenching hot place
Reason, to improve tooth face hardness, finished product tooth face hardness is at least HRA70, other position hardness are at least HRB65.
In order to ensure product quality, break corner, burr are removed after processing is completed in product, keeps its surface smooth, while to production
Product carry out narrow examination, ensure the defects of crackle, sand hole is not present in it.After having inspected, surface is coated antirust oil and is prevented
Rust protection.
The most preferred embodiment of the utility model has illustrated, the various change or remodeling made by those of ordinary skill in the art
All without departing from the scope of the utility model.
Claims (9)
1. a kind of automobile engine oil pump sprocket wheel includes lubricating oil pump sprocket body (1), the lubricating oil pump sprocket body
(1) be provided centrally with and assemble the pilot hole (1a) that is axially adapted to, it is characterized in that:The lubricating oil pump sprocket body (1) is
The integral structure of powder metallurgy forming, the lubricating oil pump sprocket body (1) are provided with demoulding taper hole (1b), the lubricating oil pump
The periphery of sprocket body (1) forms sprocket (2), and the side of the lubricating oil pump sprocket body (1) forms cavity (11), institute
The other side for the lubricating oil pump sprocket body (1) stated forms boss (12), and the periphery of the boss (12) forms the conical surface
The both sides of (12a), the sprocket (2) form cambered surface (21), and the surface hardening of the sprocket (2) forms strengthening layer.
2. a kind of automobile engine oil pump sprocket wheel according to claim 1, it is characterized in that：The machine oil pump sprocket sheet
Lightening hole (3) is evenly arranged on body (1).
3. a kind of automobile engine oil pump sprocket wheel according to claim 2, it is characterized in that：The lightening hole (3)
Both sides are respectively arranged with taper hole (3a), and circular hole (3b) is respectively arranged on the outside of the taper hole (3a).
4. a kind of automobile engine oil pump sprocket wheel according to claim 3, it is characterized in that：The conical surface (12a)
Taper (α) is 25 ° to 35 °.
5. a kind of automobile engine oil pump sprocket wheel according to claim 4, it is characterized in that：The demoulding taper hole (1b)
Draw taper be 30 °.
6. a kind of automobile engine oil pump sprocket wheel according to claim 5, it is characterized in that：Outside the sprocket (2)
End forms platform (22), and the thickness of the platform (22) is 0.05mm to 0.3mm.
7. a kind of automobile engine oil pump sprocket wheel according to claim 6, it is characterized in that：In the pilot hole (1a)
It is provided with position-limited edge (1c).
8. a kind of automobile engine oil pump sprocket wheel according to claim 7, it is characterized in that：The bottom of the cavity (11)
Portion periphery is arc structure.
9. a kind of automobile engine oil pump sprocket wheel according to claim 8, it is characterized in that：Outside the boss (12)
Arc transition is used between wall and the side wall of the lubricating oil pump sprocket body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286578.1U CN207961460U (en) | 2018-03-01 | 2018-03-01 | A kind of automobile engine oil pump sprocket wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286578.1U CN207961460U (en) | 2018-03-01 | 2018-03-01 | A kind of automobile engine oil pump sprocket wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961460U true CN207961460U (en) | 2018-10-12 |
Family
ID=63740393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820286578.1U Expired - Fee Related CN207961460U (en) | 2018-03-01 | 2018-03-01 | A kind of automobile engine oil pump sprocket wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961460U (en) |
-
2018
- 2018-03-01 CN CN201820286578.1U patent/CN207961460U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |